Hi SAP gurus,
I wonder if it is possible that you could guide me on stept to do to trace the performance of a BAPI execution in ECC which is trigger by a legacy system.
This is an example of the workflow of interfaces.

The part that I need to focus is on ECC side, I intented with st12 with the follow settings

And then I activate the trace and a person triggers the interface from legacy system, but then time pass and the trace catch nothing so I am not sure if I am doing the process well or what i need to add to the process.
Could you guide me on steps I shoud do to trace the performance of these BAPIS??
Thanks in advanced